246 Works

Monitoring the relative abundance of bird and mammal species at Alert, Nunavut

R.I. Guy Morrison
Numbers of all species occurring during daily activities are recorded. Counts occur regularly at some locations (e.g., sewage outfall stream), and are also recorded during visits to other locations in the Alert area. Numbers of each species as well as start and end times of observations are recorded to enable relative abundance of species to be calculated as the number of individuals seen per hour spent in the field per observer. To correct for any...

Monitoring of Spring snow cover at Alert, Nunavut

R.I. Guy Morrison
Snow cover is visually estimated every two days from an elevated vantage point that allows estimation of cover over a variety of flat and sloped terrain. The monitoring starts on the date of our arrival at the study site until the end of snowmelt. Descriptive notes are kept on daily weather conditions to complement the full set of climatic variables that are recorded at the Environment Canada Weather Station at Alert. ** Snow cover data...

Fox populations monitoring at Fosheim Peninsula, Ellesmere Island

Canadian Wildlife Service Josée Lefebvre & Canadian Wildlife Service Austin Reed
We are monitoring the reproductive activity of Arctic Foxes. We find dens throughout our study site during a helicopter aerial survey. All dens found are positioned with a GPS and collect hair samples and scats to determine the diet.

Monitoring of primary production of forbs, grasses and shrubs at Alert, Nunavut

R.I. Guy Morrison
We sampled the production of plants (forbs, grasses and shrubs) at 4 sites (2 in damp, marshy areas and 2 in drier, poorly vegetated habitats) in 2007 and 2008. We sample plant biomass at the end of the growing season in late July to early August by removing 8 quadrats of 20 x 50 cm at each site. All live above-ground biomass is cut, sorted out by species groups (i.e. forbs, grasses, shrub woody parts,...

Small mammal monitoring on Herschel Island and Komakuk Beach

Wildlife Conservation Society Canada Donald Reid
We monitor lemming abundance using three methods. (1) Absolute abundance estimation by capture-mark-recapture. This involves live trapping animals using Longworth traps on three, 2 to 9 ha grids (50 to 256 traps/grid) in wetland and mesic habitats; trapping sessions last for 2-3 days and are repeated up to three times during the summer from early-June to mid-September. We also determine the reproductive condition of all captured animals. (2) Full counts and mapping of lemming winter...

Chemical composition of tundra plant and lichens at Daring Lake, NWT in control and greenhouse plots

Paul Grogan, Tara Zamin, Steeve Côté & Jean-Pierre Tremblay
Samples of tundra plants and lichens were collected from control and experimental greenhouse plots at Daring Lake Tundra Ecosystem Research Station in the summer of 2011. This included two sets of samples: 1) Mid-August sampling, in which leaves were collected from the deciduous shrub, Betula glandulosa, graminoid, Eriophorum vaginatum, evergreen shrubs, Rhododendron subarcticum (formerly Ledum decumbens) and Vaccinium vitis-idaea. Samples of the lichens, Cetraria cucullata and Cladina rangiferina were also collected. 2) Sampling throughout the...

Interrogating low Arctic seabirds: Indicators of changing prey ocean and climate conditions

, , , , , , , &
Our research is centered on seabird predators and key forage species (Arctic cod, capelin, lantern fish, crustaceans). Simultaneous research in the High and Low Arctic is integrated through the Labrador Current that provides a ¿downstream¿ link to evaluate influences of High Arctic climate on marine life in Low Arctic ecosystems. In collaboration with Inuit and Newfoundland hunters and fishers, we use seabirds to sample the marine environment over multiple regional and ocean-basin scales. Analysis of...

Understanding ozone and mercury in the air over the Arctic Ocean (OASIS)

Jan Bottenheim, Alexandra Steffen, David Barber, Gary Stern, Jim McConnell, Jim Whiteway, Ralf Staebler, Stoyka Netcheva & Tim Papakyriakou
Previous studies took place at the coast, but this project took the next step by making measurements at several locations over the frozen ocean. The composition of the air was measured to learn how it changes over time and space, and the results are now being used to determine what causes ozone and mercury to disappear from the surface air. To undertake these studies over the ocean required the development of novel strategies to bring...

INterContinental Atmospheric Transport of anthropogenic Pollutants to the Arctic (INCATPA)

Hayley Hung, Amanda Cole, Ashu Dastoor, Tom Harner, Yi-Fan Li, Jianmin Ma, Alexandra Steffen, Ed Sverko & John Norman Westgate
Air monitoring of POPs and Hg has taken place at Alert, Nunavut, Canada and Ny Ålesund, Norway since the 1990s under the Northern Contaminants Program (NCP) of Canada and the Arctic Monitoring and Assessment Programme (AMAP), respectively. Through the International Polar Year (IPY) INCATPA project, stations on both sides of the Pacific Ocean have been initiated for air sampling of POPs and mercury (Hg). These include Little Fox Lakes, Yukon (POPs and Hg); Valkarkai, Russia...

Arctic Wildlife Observatories Linking Vulnerable EcoSystems (ArcticWOLVES)

Gilles Gauthier, Dominique Berteaux, Charles Krebs, Douglas W. Morris, Esther Lévesque, Josée Lefebvre, Joël Béty, Kenneth Abraham, Robert Jefferies & Suzanne Carrière
Extensive monitoring of the abundance, timing and success of reproduction, habitat use and diet of key wildlife species (primarily geese, small mammals, shorebirds, avian predators and mammalian predators like foxes and weasels), as well as annual plant production and arthropod diversity and abundance, was conducted at most sites from 2007 to 2009. Our results provide increasing evidence that predation plays a dominant role in the functioning of Arctic terrestrial ecosystems. At one site, less than...

Arctic-SOLAS 2008 atmospheric DMS, SO2, aerosol sulfate and MSA

, Ofelia Rempillo & Alison Michelle Seguin
The database consists of hourly atmospheric DMS concentration, daily SO2 and total sulfate concentrations and three-day concentrations of size segregated aerosol sulfate. Samples were taken on the top of the navigation bridge of the CCGS Amundsen as it cruised along Baffin Bay and Lancaster Sound. Hourly samples of dimethyl sulfide was obtained using a customized DMS sampler. Samples were analyzed using a gas chromatograph fitted with a sulfur chemiluminesence detector (GC-SCD) to obtain atmospheric DMS...

Diatom data from north Baffin Island

Sarah Finkelstein & Jane Devlin
Surface sediments from 20 lakes and ponds in Sirmilik National Park were collected using a gravity corer or an Ekman dredge. Water samples were taken for detailed chemical analysis of nutrient status and major ions. Diatom assemblages were also analyzed from short sediment cores (<50 cm) collected from two lakes. The lakes were chosen to span the major physiographic sectors of the park. Modern diatom assemblages differed significantly between the two sectors of SNP, indicating...

Glaciodyn (Canada) IPY Project: Weather station data collected on the Belcher Glacier, Devon Island Ice Cap, 2008-2009

Martin Sharp, Angus Duncan, Gabriel Wolken & Sarah Boon
Field measurements were necessary to initialize, force, and validate the surface energy balance model for the Belcher Glacier. Hourly and daily averages of air temperature, relative humidity, wind speed and direction, net radiation, and surface elevation were recorded over the 2008 summer (June-September) by two automatic weather stations (AWS) on the glacier centerline at elevations of 500 m and 900 m. All instruments were installed 2 m above the surface. In August 2009, the AWSs...

Carbon and nitrogen cycling in tundra soils - Devon Island

Angela Bedard-Haughn & Maxime Paré
The landscapes were divided into five landform units: (1) upper slope, (2) back slope, (3) lower slope, (4) hummock, and (5) interhummock, which represented a great diversity of Static and Turbic Cryosolic soils including Brunisolic, Gleysolic, and Organic subgroups. Soil gross N mineralization was measured using the 15N dilution technique, whereas soil GHG emissions (N2O, CH4, and CO2) were measured using a multicomponent Fourier transform infrared gas analyzer. Soil organic matter characteristics were determined by...

N2-fixation data Across the Canadian Arctic

Steven Siciliano, Katherine Stewart & Eric Lamb
Nitrogen inputs via biological N2-fixation are important in arctic environments where N often limits plant productivity. An understanding of the direct and indirect theoretical causal relationships between key intercorrelated variables that drive the process of N2-fixation is essential to understanding N input. An exploratory multi-group Structural Equation Modeling (SEM) approach was used to examine the direct and indirect effects of soil moisture, plant community functional composition, and bryophyte and lichen abundance on rates of nitrogen...

2005-2009 Snow water equivalence data, Cape Bounty

Melissa Lafreniere
42 snow survey transect sites were established across the East and West watersheds in 2005, for the purpose of determining the catchment SWE of the two basins. Additionally, in 2006, detailed snow survey transects were established in various subcatchments in the West watershed. The number of transects in each varied depending on the size of the subcatchment. Eleven depth (at 10m intervals) and three density (at 30m, 50m, 70m) measurements were taken along each 100m...

Thickness, Salinity, Temperature and Strength of Multi-Year Sea Ice, Beaufort Sea

Michelle Johnston
The viability of newly developed equipment to measure the strength of multi-year ice at depths where no information presently exists was demonstrated during the first field program in May 2012 in Resolute, Nunavut. It was tested on hummocked multi-year ice from 3 to 20 May. Measurements were constrained to one hummocked multi-year ice floe for the purposes of testing the equipment. Ice cores were extracted from two boreholes to document the temperature and salinity of...

CanSIPS Historical Forecasts

Greg Flato, , George Boer, John Scinocca, Saroja Polavarapu, Viatcheslav Kharin, & William Merryfield
CanSIPS historical forecasts or hindcasts consist of output from two Environment Canada climate simulation and forecast models, CanCM3 and CanCM4, with ensembles of 10 forecast runs from each model in order to address the large uncertainties inherent in climate forecasts and to enable the probabilities of different forecast outcomes to be quantified. Hindcasts are initialized from the start of each month from January 1979 to December 2010, and have a duration of 12 months. Data...

2003-2014 West River hydrometric data, Cape Bounty and Melville Island, Nunavut

Scott Lamoureux
Stations were established at the same location each year and equipped with data loggers and sensors for stage, electrical conductivity, turbidity and temperature. Manual samples were taken during each season at varying intervals, typically daily or more frequently for suspended sediment concentration and water chemistry. River manually rated and a stage-rating curve was developed for each year using the velocity-area method and a hand current meter.

Ice drift in the Beaufort Sea observed by drifting buoys

Christian Haas
This project, led by York University, has used airborne electromagnetic surveys and drift beacons to quantify the thickness and regional distribution of different sea ice types and extreme ice features in the southern Beaufort Sea. A Canadian airborne platform has been developed to perform long-range aerial surveys of sea ice and to mark the surveyed ice at the same time with drifting buoys. These have been air-dropped on extreme ice features and ice floes to...

LiDAR Elevation (DEM) and Intensity image, outer Mackenzie Delta 2008, coastal Arctic Canada

Dustin Whalen, Nova Scotia Community College &
This GeoTIFFs represents ground elevation and ground intensity of the northwest portion of the outer north-west of the Mackenzie Delta 2008, Northwest Territories, Canada. It is derived from LiDAR (Light Detection and Ranging) data acquired by Advanced Geomatics Research Group (AGRG), Nova Scotia Community College (NSCC) in partnership with Natural Resources Canada and Environment Canada. The source of the gridded LiDAR elevation data is cleaned ground-classified LAS point files containing elevation and intensity values. Data...

Muskrat Ecology in Old Crow Flats, Yukon, 2007-2010

Lance Nagwan, , Christina Guillemette, , Manuelle Landry-Cuerrier & Troy Pretzlaw
To gain better insight into the factors responsible for among lake variation in muskrat abundance in the Old Crow Flats, we will study muskrats on as wide a range of lakes across the Flats as possible. Lake-to-lake variation in muskrat abundance will be estimated with aerial surveys of muskrat push-up density. The abundance of aquatic vegetation, as well as lake hydrological and limnological characteristics, will be documented for a subset of surveyed lakes in collaboration...

Trichinella spp larvae in muscles of 18 species of terrestrial and marine mammals collected from Nunatsiavut, Nunavik, Nunavut and Northwest Territories in northern Canada, between 2006 and 2010

Nunavik Research Center Manon Simard, Canadian Food Inspection Agency Lorry Forbes, Canadian Food Inspection Agency Alvin Gajadhar, University Of Guelph Andria Jones, Department Of Environment Brett Elkin, University Of Guelph Erica Pufall, DFO Ole Nielsen & DFO Tanya Brown
The data set includes sample identification, species, collection location (described using one or more of the following: name of a prominent geographic feature, nearest community, latitude and longitude), date of collection, date of testing, age, sex, sample type, sample weight, larvae recovered per g of sample, and Trichinella spp or genotype recovered. Laboratory protocols are described including recovery of larvae from muscle usng a pepsin-HCl muscle digestion procedure with a double separatory funnel step to...

Ice patch associated archaeological sites in the Mackenzie Mountains, Northwest Territories, 2007-2011

Prince Of Wales Northern Heritage Centre Tom Andrews, Prince Of Wales Northern Heritage Centre Glen MacKay & Tulita Dene Band Leon Andrew
The dataset includes Canadian Museum of Civilization archaeological site forms, which record site location, size, type, condition and other site attributes. Artifact catalogues record artifact attributes, such as type, form, components, material, radiocarbon dates (if applicable), etc. The faunal catalogues include information on faunal identifications, condition, radiocarbon dates, stable isotopes, etc.

Interview data on employment in the wage economy, food security, and effects on the traditional economy in Paulatuk NWT, April 2008 to August 2009.

Council Of Yukon First Nations Cindy Dickson, Department Of Resource Economics Zoe Todd, Department Of Resource Economics Brenda Parlee, &
The data consists of 22 semi-directed interviews, with quantitative survey questions and open-ended interview questions. Interviews are in the form of audio files and transcriptions. 2 interviews were done in Inuvik, and 20 in Paulatuk. In Paulatuk, the 20 participants are between the ages of 20 to 83, with 9 participants being female and 11 being male. Extensive notes from a workshop conducted in August 2009 were also taken. 2 additional interviews were conducted in...

Registration Year

  • 2017
    3
  • 2016
    163
  • 2012
    80

Resource Types

  • Dataset
    245
  • Collection
    1